api: add /improved/best/{platform} endpoint

API/src/main/java/cc/fascinated/controller/ScoresController.java

@@ -98,4 +98,21 @@ public class ScoresController {
                 30
         ));
     }
+
+    /**
+     * A GET mapping to retrieve the score
+     * history for a leaderboard
+     *
+     * @param platform the platform to get the history from
+     * @return the score history
+     * @throws BadRequestException if there were no history found
+     */
+    @ResponseBody
+    @GetMapping(value = "/improved/best/{platform}")
+    public ResponseEntity<?> getBestImprovedScores(@PathVariable String platform) {
+        return ResponseEntity.ok(scoreService.getBestImprovedScores(
+                Platform.Platforms.getPlatform(platform),
+                30
+        ));
+    }
 }

API/src/main/java/cc/fascinated/repository/ScoreRepository.java

@@ -53,7 +53,21 @@ public interface ScoreRepository extends MongoRepository<Score, String> {
             "{ $match: { 'previousScores.0': { $exists: true } } }",
             "{ $sort: { pp: -1 } }"
     })
-    List<Score> getImprovedScores(@NonNull Platform.Platforms platform, @NonNull String playerId, @NonNull Date after);
+    List<Score> getUserImprovedScores(@NonNull Platform.Platforms platform, @NonNull String playerId, @NonNull Date after);
+
+    /**
+     * Gets the best improved scores from the platform.
+     *
+     * @param platform the platform to get the scores from
+     * @param after    the date to get the scores after
+     * @return the scores
+     */
+    @Aggregation(pipeline = {
+            "{ $match: { platform: ?0, timestamp: { $gt: ?1 } } }",
+            "{ $match: { 'previousScores.0': { $exists: true } } }",
+            "{ $sort: { pp: -1 } }"
+    })
+    List<Score> getBestImprovedScores(@NonNull Platform.Platforms platform, @NonNull Date after);
 
     /**
      * Gets a score from a platform and leaderboard id.

API/src/main/java/cc/fascinated/services/ScoreService.java

@@ -225,7 +225,18 @@ public class ScoreService {
      * @return The improved scores.
      */
     public List<Score> getImprovedScores(@NonNull Platform.Platforms platform, @NonNull User user, int days) {
-        return scoreRepository.getImprovedScores(platform, user.getSteamId(), DateUtils.getDaysAgo(days));
+        return scoreRepository.getUserImprovedScores(platform, user.getSteamId(), DateUtils.getDaysAgo(days));
+    }
+
+    /**
+     * Gets the best improved scores from the platform.
+     *
+     * @param platform The platform to get the scores from.
+     * @param days     The amount of days in the past to get the scores from.
+     * @return The scores.
+     */
+    public List<Score> getBestImprovedScores(@NonNull Platform.Platforms platform, int days) {
+        return scoreRepository.getBestImprovedScores(platform, DateUtils.getDaysAgo(days));
     }
 
     /**